of oakland



F. A. GERCICH ET AL KINDLING BURNER INSTALLATION Oct. 27, 1931.

Original Filed Dec. 8, 1927 IIIIIIIII'IIIIIIIIIIIIIAIIIIIIIIIIIIIIIIIIQ\\\ 11/ [all] I IN V EN TORS MW 7 Y B 0 W M R WW M FReissued Oct. 27, 1931. 1

UNITED, STATES PATENT o FFic FREDERICK A. GERCICH, or OAKLAND,-AND'WALTER M. BERRY, or LOS ANGELES, CALIFORNIA, assrenoasTOHAMMER-BRAY COMPANY, or OAKLAND, CALIFORNIA,

A CORPORATION OF CALIFORNIA KINDLING BURNER INSTALLATION Original No.1,728,165, dated SeptemberIO, 1929, Serial no. 238,527, fi1ed December8,1927.

reissue filed February 24,

The invention relates to aninstallation for gas kindling burners insolid-fuel fire boxes.

An object of the invention is to provide an installation of thecharacter described in which the kindling burner is disposed entirelvout of the combustion portion of the fire-box space whereby it may atall times be relatively cool and cannot be damaged by the combustion ofsolid .fuel in the fire box.

Another object of the invention-is to rovide the necessary secondary airfor a 'ndling burner for a fire-box from without the combustionportionof the fire box.

A feature of the invention is the provision of a novel means forsupplying secondary air to a. kindling burner. of the nature and for thepurpose described, arranged forthe purpose of conducting, in the bestpossible manner, the proper amount of secondary air to the burner andsubject to ready provision in or in connection with one of thewalls ofthe fire box.

The invention possesses other objects and features of advantage, some ofwhich, with the foregoing, will be set forth in the followingdescription of the preferred form of the invention which is illustratedin the drawings accompanying and forming part of the specification. Itis to be understood, however, that variations in the showing made by thesaid drawingsand description may be adopt: ed within the scope of theinvention as set forth in the claims.

Referring to said drawings,

Figure 1 is a fragmentary sectional view through a stove structureembodying the invention.

Figure 2 is a fragmentary side section taken through the fire box ofthestove.

Figure 3is an enlarged sectional view taken at the line 33 in Figure 2.

Figure 4 is an enlarged sectional view taken at the line 4-4: in Figure1.

In its present embodiment, the installation of our invention isincorporated with a combination stove 6 having a cooking'top 7 beneath aportion of which is defined a topgas-burner chamber 8 and beneathanother portion of whichis defined a fire box 9 for Application for1930. Serial No. 431,039.

Solid fuel. The chamber 8 and fire box.9

are separated by a common wall 11, and the chamber 8 is defined above abottom wall 12, while the cooking top portion above the fire-v box isprovided with an opening 14 in which a plate 16 is arranged to beremovably mounted in a usual manner.

Preferably, the chamber 8 is divided generally horizontally by a member17 to define a combustion compartment 18 above the member andimmediately below the cooking top, and a fresh air supply compartment 19constitutingthe remainder of the space of the chamber. Each top burner21 is disposed generally in the compartment 19 and opposite an opening22 in the member 17 whereby air in passing from the compartment 19 willbe directed over the burner to provide the necessary secondar air supplytherefor, conduit member 23 eing shown mounted at each opening forguiding the air over the burner thereat. The member 17, it will now benoted, depends from the cooking top portion above the chamber 8 and isprovided with an imperforate and substantially vertical side wall 24 atthe edge thereof opposite the partition wall 11. the wall 2 1 beingspaced somewhat from the wall 11 whereby the relatively cool fresh aircompartment 19 extends the full height of the chamber adjacent the wall11.

Upper and lower kindler burners 26 and 27 respectively are provided forthe fire box. Preferably, and as shown, the upper burner 26 is disposedto extend horizontally above the plane of the horizontal wall 12 andwith the manifold portion 28 thereof in the com.- partment 19. Extendinghorizontally toward and into the fire box from the burner 26 through aslot- 29 in the wall 11 is a tapered rib portion 31 of the burner, whichportion ispreferably of uniform section throughout its length andextends horizontally substantially thefull length of the fire box. Theforward face 32 of the burner portion 29, it is noted, is formed toprovide a series of rectangular nozzles 33 having jet openings 34connecting with the manifold passage 36 of top.

"purposes; whereby, whenthere is no solid fuel in the path of the jets,a horizontal sheet of fire may be provided beneath the cooking Themanifold portion ofthe lower burner 27 is also disposed without thefire-box space and at a level just above that-of the fire-box, grate 37whereby gaseous fuel from the burner may be delivered directly into anysolid fuel at the bottom of the fuel receiving space of the fire-box.This burner, it is noted, is

' formed generally as is the burner 26, and is here shown disposedgenerally inwardly of the latter burner with respect to the firebox, alower portion 38 ofthe wall being ap propriately offset,and'providedwith aslot 39 for the reception of the jet rib of the burner 27.

-As is usual, fire resistant linings are provided for thesides ofthefire-box, such linings including a lining member 41 for dispositionopposite and forming in fact, a part of the wall 11. The member 41, itwill be noted, is disposed generally inwardly of both 'of-the burners 26and'27 and extends substantially the full length of the fire-boxandbetween the grate and cooking top. To providefor the projection of theheme jets from the burner 26 through the member '41, the latter isprovided with 'aseries of generally rectangular openings 42 opposite theburner nozzles 33 and in spaced relation therefrom. However, anyotherarrangement whereby the burner, preferably protected from the heat,but at all events arranged to direct the fuel into the fire box,may beresorted to as'within the scope of this invention provided the'novelsecondary air feed provisions more particularly herein-g after describedare employed in connection with the said burner. Preferably, and asshown, an outwardly extending flange 43 ta pered in the manner of anozzle is provided about the edge of each opening 42, whereby theopenings provided in the lining member 41 are protected somewhat,particularly from above, from the entry of ashes or other solidmaterials therethrough, these openings also providing, inefi'ect,'conduits about the bases of the flame jets from the'bu'rnernozzles As here shown, the member 41 is secured to the wall 11 by bolts44, spaced projections 45 and 46 being provided ont-he member 41 formain: taining the proper spaced relation of the member and walL Asherewith-particularly shown, the projection 45 is formed "as a con--tinuous rib overlying the slot 29 of the wall and extending the fulllength of the lining member whereby the space between the mem-,

bervand wall and above the burners is parti tinned off. In the mannerabove referred te there is provided a passage or air space 47 in asidewall of the fire box proper for the express purpose'of supplyingsecondary air to theburner. p

:It will now be noted that the relation of the burner nozzles 31 to thetapered open-,

ings 42 is such that as the gaseous fuel is discharged throughthe'openings, air will be d'rawnfrbmthe air'spacel47 behind the liningmember 41"and into the flame jets whereby it may serveasa secondary airsupply for the jet. Such a supply is, of course, necessary. foreflecting 'a complete combustion of the fuel from the nozzles 31, andthe relation between thenozzles 31 and member 41 is preferab'ly suchthat substantially all of the necessary air for the purpose is providedthrough the openings 42, In this manner, combustion of the'dischargcdfuel is insured regardless of the contents of the combustion space ofthe fire box, and no smothering of the flames of the jets is ossible asmight occur when solid fuel-is being simultaneously con sumed' in thefire box. l

With the present structure, air must of course be admitted 'to the space47 defined between the memb er 41 and wall'll, and below I the rib 45,and while the opening at the bottom of the member 41: might serve forthe purpose, the draftcreated across the nozzles of the burner27," when"the burner 26 is in oper'atiomwould t'endto interfere with propercombustion of fuel at such burner; Accordingly, the wall 11 ispreferably provided with a longitudinally extending opening .48 adjacentthe burner 26 whereby air for this burner may be drawn from thecompartment 19 of the burner chamber 8. Preferably, and as shown; theopening 48 is formed by bending out of the-plane of the wall arectangular portion 49 thereof, such portion being left attached to thewall alongl one longitudinal edge and constituting a louver in effect.In this manner, a sufficient secondary air sup ply isinsured for theburner 26 and the effective passage provided'at the opening 48maybeadjusted in a simple manner by adjusting-the angular relation ofthe louver 49 to the wall 11. -However-{when only the upper burner 26isused, air will readily enterthe'opening 42 andpass upward in thepassage47 to the upper burner, and if the made for convenientlyassociating the burner with said wall in such manner that the burnerwill be protected from the heat from the fire box, yet will mosteffectively inject fuel into the fire box and cause the mixture ofsecondary air with the fuel to insure proper combustion at all times.

We claim:

1. In combination with a fire-box for solid fuel, a gas burner disposedat a side of the fire box generally outwardly thereof and providing anozzle for directing a stream of fuel into the fire box, a lining memberdisposed in front of said nozzle and having an opening opposite saidnozzle to permit the dis charge of said fuel stream therethrough, andmeans operative to provide from behind the member the secondary supplyof air for effecting the combustion of the fuel of said stream withinthe combustion space of the fire box.

2. In combination with a fire box for solid fuel,- a gas burner disposedat a side of the fire box and providing a nozzle, and a lining memberdisposed in front of said burner and provided with an opening oppositesaid nozzle and in spaced relation therefrom whereby a stream of fuelpassing from said nozzle through said opening will draw the secondaryair supply for the combustion of said fuel through said opening frombehind said lining member.

3. In combination with a fire box for solid fuel, a gas burner disposedlongitudinally along a side of the fire box and providing a row ofnozzles for projecting gaseous fuel into the fire box, and a liningmember di posed in front of said burner and provided with openingsopposite said nozzles to permit a free discharge of fuel therethrough,said openings being formed to provide conduits for directing a secondarysupply of air from behind said lining member and into said stream.

4. In combination with a stove having a solid fuel fire box and a topgas burner chamber separated by a common wall, a kindler burner disposedadjacent said wall and providing a nozzle for directing a stream of fuelinto the fire box, a lining member insaid fire box disposed in front ofsaid nozzle and perforated to permit the passage of said fuel streamtherethrough, and means operative to provide from said chamber thenecessary secondary supply of air for effecting the combustion of thefuel of said stream within the combustion space of the fire box.

5. In combination with a stove having a solid fuel fire box and a topgas burner chamber separated by a common wall, a kindling burnerdisposed generally within said chamber and having a nozzle portionthereof extending through said wall into said fire box, a lining memberin said fire box disposed' opposite said wall and burner nozzle portionin spaced relation therefrom and perforated opposite said nozzleportionto permit the passage therethr'oughof fuel from said nozzleportion, means operative to provide from the" space between saidmemberand said wall the necessary secondarysupply of air for effectingthe combustion of said fuel within the combustion space" of the firebox,and means operative to supplysaid space with air from said chamber.

6. In combination with a stove having a solid fuel fire box and a topgas burner chamber separated by a common wall, a

chamber to provide a combustion compart- 4 ment immediately below theoverlying cooking top portion, a lining member in said fire boxfdisposed along said wall in spaced relation therefrom, and a kindlerburner disposed in said chamber without said combustion compartment andarranged to discharge gaseous fuelthrough said wall and lining memberinto the combustion space of the fire box, said wall and liningmember'being provided with openings 'throughwhich a sec? ondary supplyof air for said fuel in said fire box is arranged to be drawn from saidchamber.

8. In a stove, a solid fuel fire box, a burner arranged to dischargegaseous fuel into said fire box, and a wall at a side of the fire boxhaving a vertical air passage within the confines thereof and openinglaterally therethrough into the fire box and arranged to receive airfrom a point without the combustion space of the fire box and to conductsaid air to said burner to support combustion of said gaseous fuel.

9. In a stove having a cooking top, a solid fuel fire box, a burner forgaseous fuel located beneath and within the confines of the cooking topand arranged to provide a flame in said fire box whereby to heat saidtop, and a wall at a side of the fire box and within the confines ofsaid top for providing a secondary air passage arranged to receive airfrom a point without the combustion space of the fire box and to directsuch air to the point of combustion of the gaseous fuel in said firebox, said burner being arranged to discharge gaseous fuel through a partof said passage and into said fire box.

10. In a stove, a solid fuel fire box, a double wall structureassociated with the fire box and a gaseousfuel burner arranged to beproteotedgirom theheet of the firebox by said:' wall structure and toprovide e flame 111 fire ;box, i said wail mcture providing a ondaryair. passage between the two-wallsv thereof, said passageopeninginzterallyiinto,

said fire box and conducting an to the point of and to supportcombustion of the fuel in said five box, said burner being. ocated onthe outside; of the :wall structure hav: ing a portion thereof extendedintothe lab erally open-end ofthe passage. 1

11.; In a stove, a solidiuel fire-box} do ihle wall structure inassociation with the, fire, Y

box and providing between said walls a ondary air passage havingalaterally extendeddischarge outlet opening into the fine box;

and a gaseousfnel burner providing through,

the instrumentality of said outlet a. flame in said fire looxforgdireotly heating the "top thereof. 7 V t p 12. In a stove, asolidfuel fire box, a double wall structure in association with the fire box.

end providing therein a seeondary air pa-ssage having; dischargeoutletopening into thefire box, and a gaseous fuel burner 1o-- cated toonesideof the wallstnuoture and having a portionthereof disposed insaidpassage and providing through the instrnme n tality of saido'litlet aflemein said fire box, for-directlyheating the top thereof.In-ztestimony whereof, we have hereunto, setour hands at Oakland andIns'Angeles, California, respectively, on Jan. 30th, 1930,- andFeb;7th,-1930. v a i FREDERICK .A. GEBCICIL WALTER M. BERRY; 1

